The fastest way: use iCloud Music Library

If you have an Apple Music subscription or iTunes Match, turn on iCloud Music Library and your iTunes music syncs to your iPhone automatically. Open Settings on your iPhone, tap Music, then toggle on iCloud Music Library. Your library appears in the Music app within a few minutes to a few hours, depending on how many songs you have.

This method works even if your music came from CDs you ripped, files you downloaded, or songs you bought on iTunes. iCloud Music Library treats all of it the same way — it uploads to Apple's servers and makes it available on any device signed into your Apple ID.

If you don't have a subscription, this option isn't available. Move to the next section instead.

Key Takeaways

  • iCloud Music Library is the easiest route if you have Apple Music or iTunes Match — turn it on in Settings and your music syncs automatically.
  • If you don't have a subscription, connect your iPhone to a computer with USB and use Finder (Mac) or iTunes (Windows) to sync specific playlists or your entire library.
  • USB syncing copies music to your phone's storage, so you can only fit as much as your device has space for.
  • Purchased music from the iTunes Store downloads free to your iPhone through the Music app, no syncing required.
  • If you use a Mac with Apple silicon (M1 or newer), use Finder instead of iTunes — iTunes no longer exists on those machines.

Syncing over USB if you don't have a subscription

Connect your iPhone to your computer with a USB cable. On a Mac running Catalina or later, open Finder and click your iPhone in the sidebar. On Windows or older Mac, open iTunes instead.

Click Music in the left panel. Check the box next to "Sync Music" and choose whether to sync your entire library or selected playlists and artists. If you pick selected items, check the boxes next to the ones you want. Click Apply or Sync at the bottom right. The process takes a few minutes to an hour depending on how many songs you're moving and how fast your connection is.

This method copies music files to your phone's storage. If your iPhone doesn't have enough free space, you'll see a warning before syncing starts. You can only keep as much music on your phone as it has room for.

Downloading music you bought from iTunes

Music you purchased through the iTunes Store is tied to your Apple ID and downloads free to any device. Open the Music app on your iPhone, tap the Library tab at the bottom, then tap Purchased. Find the song, album, or playlist and tap the download icon (a cloud with a down arrow). The music downloads to your phone and stays there even if you delete it from iCloud later.

This works only for music you actually bought from Apple. If you synced music from CDs or other sources, it won't appear in Purchased.

Using a third-party app if you have music in other places

If your music lives in Google Play, Spotify, Amazon Music, or another service, you don't need iTunes at all. Download that app to your iPhone and sign in with your account. Your music library appears in the app automatically.

Some people use apps like Pacemaker or Serato to move music between services, but for most people, just using the original app is simpler and faster. You stream the music rather than storing it on your phone, so you save storage space.

Troubleshooting when music won't sync

If you're using iCloud Music Library and songs aren't showing up, check that it's actually turned on: go to Settings > Music and look for the iCloud Music Library toggle. If it's on but music still isn't there, sign out of your Apple ID on the iPhone (Settings > [Your Name] > Sign Out), then sign back in. Wait 10 to 15 minutes for the library to reappear.

If you're syncing over USB and music isn't transferring, make sure your iPhone is unlocked and you've tapped Trust on the "Trust This Computer" prompt that appears. If that prompt never showed up, disconnect the phone, restart both devices, and reconnect. Also check that you actually clicked Apply or Sync — the button is easy to miss.

If you're trying to sync music but your iPhone runs out of space partway through, the sync stops. Delete photos, videos, or apps you don't need, then try syncing again. You can also choose to sync fewer playlists to fit more music on your phone.

Understanding the difference between syncing and streaming

Syncing copies music to your phone's storage using USB. The music stays on your phone even without an internet connection. You can only keep as much music as your phone has free space for.

Streaming through an app or iCloud Music Library plays music from the internet. You need a connection to listen, but you can access your entire library without filling up your phone. iCloud Music Library lets you download specific songs to listen offline, but most of your library streams instead.

For most people with a subscription, streaming is more practical because you get access to millions of songs without storage limits. If you have spotty internet or a small phone, syncing specific playlists over USB gives you music that always works.

Frequently Asked Questions

Can I sync music from my iPhone back to iTunes on my computer?

No — syncing only goes one direction, from computer to phone. If you want to back up music from your iPhone, use iCloud Music Library or export playlists through a third-party app. iTunes itself doesn't pull music off your phone.

What happens to my synced music if I sync again with different songs selected?

The old music gets deleted and replaced with the new selection. Before you sync, make sure you've checked the right playlists and artists. If you accidentally delete something, you can sync again with the original selection to put it back.

Do I need to keep my computer connected to use synced music on my iPhone?

No. Once music is synced to your phone, it stays there. You can disconnect the computer and listen anytime. You only need to reconnect when you want to sync new music or update what's on your phone.

Can I use iCloud Music Library and USB syncing at the same time?

You can, but it's confusing. If both are on, iCloud Music Library takes priority and USB syncing may not work as expected. Turn off iCloud Music Library in Settings if you want to sync over USB instead.

What if I have music in iTunes that won't sync because it's DRM-protected?

DRM-protected files (usually older iTunes purchases) sometimes don't sync smoothly. Try removing the song from your sync selection, syncing, then adding it back and syncing again. If that doesn't work, you may need to re-download it from iTunes or use a different method to get it on your phone.